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Bad extrusion and Bowden tube out


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Posted · Bad extrusion and Bowden tube out

Hello everybody
Does anyone have any suggestions to fix this problem?

Printing starts well. After a few minutes....
Extruder 1 (PETG) layer appears discontinuous.

The bouden tube slips out of place.

I check the feeder and guide tube again. Clean extruder.
Print some lines well and re-extrude badly

Thank you very much for any idea

_MG_8510.JPG

_MG_8512 copia.jpg

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    Posted · Bad extrusion and Bowden tube out

    Hi,

     

    For the Bowden tube slipping out of the feeder, check that the tube coupling collet (the round item that you push the Bowden into) as all its teeth still so it can grip the bowden.

     

    If the coupling collet is all fine then cut around 4mm off the end of the Bowden tube, this will mean the coupling collet will now be gripping a fresh part of the Bowden tube as it’s likely that where it gripped before if worn and that’s why the Bowden tube was able to slip free from the feeder.

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    Posted · Bad extrusion and Bowden tube out
    10 hours ago, Carla_Birch said:

    Thank you so much for the comments.
    I will take that action as security. When printing starts the tube is perfectly anchored with force and it is difficult to move from its position

     

     

     

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